NDA questions
2295 published questions with worked solutions.
- If (1+ )(1+ 9 )=2, then what is the value of (10 )?
- What is the value of 0^ + 10^ + 20^ + 30^ + + 360^ ?
- Consider all the subsets of the set A= 1, 2, 3, 4 . How many of them are supersets of the set 4 ?
- Consider the following statements in respect of two non-empty sets A and B : 1. x (A B) x A or x B 2. x (A B) x A and x B Which...
- Consider the following statements in respect of two non-empty sets A and B : 1. A B=A B iff A=B 2. A B= iff A=B Which of the...
- Consider the following statements in respect of the relation R in the set N of natural numbers defined by xRy if x^2-5xy+4y^2=0 :...
- Consider the following statements in respect of any relation R on a set A : 1. If R is reflexive, then R^ -1 is also reflexive 2....
- What is the principal argument of 1 1+i where i= -1 ?
- What is the modulus of ( -3 2 - 1 2 )^ 200 ?
- Consider the following statements : 1. n! 3! is divisible by 6, where n>3 2. n! 3! +3 is divisible by 7, where n>3 Which of the...
- In how many ways can a team of 5 players be selected out of 9 players so as to exclude two particular players?
- In the expansion of (x+ 1 x )^ 2n , what is the (n+1)th term from the end (when arranged in descending powers of x)?
- If the sum of the first 9 terms of an AP is equal to sum of the first 11 terms, then what is the sum of the first 20 terms?
- If the 5^ th term of an AP is 1 10 and its 10^ th term is 1 5 , then what is the sum of first 50 terms?
- Consider the inequations 5x-4y+12<0, x+y<2, x<0 and y>0. Which one of the following points lies in the common region?
- Consider the following statements in respect of the function y=[x], x (-1, 1) where [.] is the greatest integer function : 1. Its...
- What is the degree of the differential equation 1+ ( dy dx )^2= ( d^2y dx^2 )^ 4 3 ?
- What is the domain of the function f(x)= 1-(x-1)^2 ?
- The area of the region bounded by the parabola y^2=4kx, where k>0 and its latus rectum is 24 square units. What is the value of k?
- What is ( x)^ -1/2 ( x)^ -3/2 ,dx equal to?